A cobpobatiost oe eiassachttsstts



Nov. l, 1927.. 1,647,724

A. CEDERLUND ET AL WEFT DETECTOR IN LOOM TRANSFERRER Filed NOV. l5. 1926 l Y Dff.\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\% gum nnuumli ff E3 l $2 5 I. kl! l 'I 5 D lmlm u un mmnnnm y Se E ward movement toward Patented Nov, l, 192'?.

UNlTED STATES ALBERT CEDERL'UND All-D Rl GREVE?? LR21@ rl REER, GTF TTRCESTER, :MASSA- CHUSETTS, ASSEN-NOR@ T0 CEQMETN :it {NUWLEE "lWORIS, OF WORCESTER, MASSACHUSETTS, A CORPORATON 0F ,ASSACEUSETTS WEET DETEGTGR 1N LOQIM lREBTSFERRER.l

Application filed November This invention relates to improvements in wett detectors for wett replenishing looms more particularly ot the type wherein the transierrer arm receives a regular downthe active shuttle on every alternate beat of the loom. and it is the principal object ot the invention to provide a side slippingv teeler for the trans ferrer arm so arranged as to be moved toward the surface to be detected by energy transmitted to itthrough a resilient or cushioning device.

In Patent No. 1,372,316 to lvon there is shown a loom having a transfen y`,r arm movabledownwardly on alternate b ats ot the loom to present a detector to the weitin the shuttle when thelay is in its extreme forward position. ln co-pending patent application Ser. No. 120,491 liled by rl'urner there is shown a yieldable lever held in raised position relatively to the transierrer arm and tending by reason of the energy stored therein to move downwardly toward the w/eit after the transterrer arm has been biiought to rest. rllhe detector in that instance is pivoted to the lever and the whole energy stored in the lever is transierred `directly to the detector by a positive connection. rlhis construction has been found, in certain instances, to result in undesirable pressure of the detector against the yarn, and it is an important object ot our present invention to mount the detector ior relativo sliding` movement on the lever which is pivoted tothe transterrer arm and to inipart the energy :from the lever to the de tector through spring which as shown here .in is of the compression type. i

lt is a still 'fi/irther olfcct of our invention to provide a, weit detector of the type specified wherein a single spring associated with the detector will operate to restore the same to normal position with respect to the supporting' lever after an angular movement at the time of indication of weft exhaustion.

With these and other objects in view which will appear as the description proceeds, our invention-resides in the combination and arrangement ot parts hereinafter described and set forth in the claims.

In the accompanying drawings wherein we have shown a convenient embodiment ot our invention,

Figi l a vertical section through that 15, 1926: Selal No. 148,396.

part oi transterrer which entends parallel to land above the bobbin when the latter is in detecting" position and showing the parts in the positionthey assume when a soilicient ippiy of weit is present,

Fig. 2 is a view similar to 1 but showing; the parts moved to indicating position7 F 3 is a vertical section on line 3*?, of Fig. 1,

Fig'. l is a horizontal section on line 4--4 of Fig. 3, and Y Fig. 5 is a detail end elevation of a portion oi the supporting,` lever and detector taken in the direction ol" arrow 5, Fig. 1.

Referring the drawings it will be seen that we have provided a transierrer arm 10 having au extension 11 which normally lies above the hobbin B when thelatter is in detecting; position on that side oit the loom where the replenishing mechanism is located. Said extension has a heel 12 to engage the rings ot the butt 13 of the bobbin and may have a web 141 to prevent upward movement oi the central portion ot the bobioin during transier. Said extension 11 is provided with a slot 15 defined by parallel vertical walls 1G between which extends a supporting stud 17 yon which is mounted for limited angular movement a detector supporting` lever 18. Said lever 18 has a linger 19 which is normally held against a portion ot the transerier arm by a tension spring 20 connected to a lug 2l of the lever 18 and a screw 22 threaded into the transierrer arm.

A plunger 23 is movable in a cylindrical bore 24e extending longitudinally of the extension i8 and substantially para lel to the bobbin B. A. compression spring 25 surrounds a portion ol the plunger and lies between a web 2G rigi d with the transterrer arm and Yhe head 27 otl 'the plunger and. tends normally to move the latter to the right as shown in Fig'. 1. Y

ln order to control movement ot the plunger23 there may be provided a latch 28 pivoted at 2) to a lined part ot the transferrer arm and having a hooked end 30 to receive a notch 31 formed in the lett hand end of the plunger 28. A depending tail 32 of the latch 28 is the means by which the latter may be moved in a countercloclrwise jction around stud 29 at the time ot indi cation ci wett exhaustion to release the plunger this movement .fait .lateh bee lever not shown i f 'storinioil ilie liiiier :ind l inlended Ato be embedded in ihe vn n or ing resisied by sinzill coiled ziround a parli oi stu one end iii engageiiieiii l'lie other end in ei its iioriiiiil position einer ljicii ii left hund direction. lflie iii plunger 23 io the. right ii spring; 25 is liniiilied h v pi engage the veli QG :is shown `in matter thus i'fiir described i i, iii-,ini struction, doivniiferd nueve/incid', oi ferrer iiriii storingY i ivardly allier the iis loives' position plunger E23 when shcwn in Fig. 2, conA lei l.

in the aforesaid pei;

miie lo 'flic ii'iziiiei thus lar described.

@ur pieseniV iinproveriicis include ineens for 'cransi'iii'tiiipg lie ener v sl..,ed iii lever 18 to llie ivcf deecio inv LJ V noriniil posiiion. ln ci; it in venion We provide die lever i8 ivil'li :i coii'iciil doiviiimrdly flaring' di gered epeniiif; Q0, and We liuri'l er provide Jdie ,e i i downwardly `eiiiei'idiiig erin Secured in any approved i ii einzu.

plate 42 having i slot 43 i'liiien is shown incre particularly iA ll" 'C'. l zinc el. The def i lector comprises ai rod i secured lo the Jhe ieper d hole l0 iid cross-seoion siihsciinl'i slot i3 but of less len@r is 'free to nieve in che s i'lie position shown iii Y sion spring lfd siirroiiiidii j tween the opening' l0 fender norii'isilly,7 i such nioveineni"y Jeingj l' secured no die rod elflin from said rod iii zi direc direction in which 'die c e linie of indication.

upwardly lzii'ii' S delificd pair el lugs D exiendiiig upwardly the lever 18.

The yarn eiigiigin-'r 9J i C. lor may be inzide or ai slrip oli slieili ineiiii having one end thereof secured 1o the lieiid 425 and having i'lie other end eiiieiidiiigr iipivardly as al; 5l in position to eiigiige llic depending` tail 32. rllhe under side ol the de- "tector 50 is provided ivih teeth 52 which :ire

e the hobbin and are also localied to one side of lie axis ofthe rod lfl. rillie detector is rounded i is at 53 and i guard 54e prevents the 'iiil 'lironi being caught on die lel"y hand side of upwardly eid-ending 5l of che deiec/ioin TWhen die position the r' el? te ilie lood-oni of lio iipiviiril i flaring;

opening lo i'lie iviosiiioii shown iii Tien i5, l l id nl )iiiig` will. zilso "eend 'ze held l'iic rod ffl-l. ver'lieiil oecziiixe of the Contact lieiiiei-iii llie linger 1li" and die l r lll ivliicli is leciiled lo i As lie ui-:im-

oiie eide of lie :i2 s oi rod f. lieii'er erin reiicli i s loiveriiios' poeinioii il; iiilA lie liioiigl i ia. 'esi very quickly ziiid the lever i8 will conti dormir: idljv lo press priiigr 443. 'llie energy er eiiil olf iczil'ed i'o the (le/rector eve l lili lli 'i coiiliiiiied iveziviiig is pi e he rcsriiiiied :,igii'iiisi lii; I'lie eii'd 5l of ilie deiiwzif; freni he liiil 32. l, ive''; 'for ce' "iiiiied iveiivill i 52 will slide along; to lie posii'ieii shoivii Fig; 2 rlie end 5l engaging die lrail 32 io "oel: lie lii'fccli 28 in :i coiiiitcrclocliii'ise diivill lie inovcd to the righi. lo iiifiliciiiiiim' poSiden iin ler action of spring 25. fis soon s lever l@ has conie to resi relatively lo the ini f v diei nioies upio' i'liroiirgli @he ii'iirdly l'he so liel l5 ind e Y estore *die delle/e- Jroi 'o llie no 'mal positie/ii fliowr in Fig. l.

ll"roiii lie :foregoing i; iv'll lie seen thai', We e provided ii ivelili de ,for moved, toiviird lie dele i such enerev dfiiie :iiiriizice llo ived 'freni i ,rziiisiiii'ied lliicfiigrli lli'i spu lf3 und llirit 'lie iieecl'oi if: iiiovrili. i :lli rcpec lo its :iiiier lever :is ii'ell :is ilieiiigr slidrhlv iiioiini'led lliereiin, lli will iniii'lliei' liiii seen hiil i'he pin L7 coopei'fies ivilli llie. spring' l? lo i'eiirii lhe lever lo iioiiniil posii'ien filler esi li indicecire'A .ino/vement i Yziviiig' liiis described our iiii'eiii/ioii, iii

will lie nppfireii: l'liiil chung/jes and ii'ifidiliczi- 'lions iniiv le n'izi "iieieiii liv 'lioe skilled and scope of l'lie iiiveiiioin :iiid ive do-iiol;y

wish ro lie, liniii'e'd io the del'ziils herein disclosed. liiiiw ivl nl: ive claim is:

l. en zi, Welt de'ecinor 'for ii ii' ing` looin havin Y; e rei sinerrer iirin receiving ii, inoveii'ieifiiy oirard the siirl'ace to he doilie leoni. :i

teced on eiicli detecting oeii el weft detector carrier ino if'zilelj,T iiioi nien on lie triiiisierre' erin, zi Welt detecl'iiig eleiiicil4 inounred on the ari'ier izo iiiove slide i respect thereto on non-i` pieles olf il ie loci-in .and e;-

e ift .replenishlli) thereto on indicating picks, and yielding means interposed between the carrier and the element to transmit energy derived from the carrier to the element tending to move said detecting element along the surface to be detected at substantial exhaustion oi wett.

2. ln a wett detector for a wett replenishing loom having a transleri-er arm receiving a movement toward the surface to be detected on each detecting beat et the loom, a lever pivoted the transterrer arm. and nermaltv held yieldingly in raised position, adetectingelement movable on the levei to slide relatively thereto on non,-indicat'=ig afleecting beats of the loom and to move angularly relatively to the lever on indicatin' beats ot the loom, and having a detecting snriace out oit vertical alignment with the point about which the detector moves angularly relatiifely to the lever to engage the smrface to be detected, and a yielding' device interposed between the supporting; lever and the detector, said yielding device transmitting energj :from the lever to the detector, .said detector sliding along the suriace to be detected at substantial exhaustion ot wett.

3. ln a wett detector ive-it reiiilenisl'iing loom having a transiorrer arm receiving a movement toward the surface to be de* tested on each detecting' beat ot the loom, a carryingv lever pivotally mounted on the trans'lci'rer arm and normalli7 held yielding ly in raised position, a detector element mounted to slide on the lever on non-indicato ingdetecting picks of the loom and also angularly movable with respect to the lever on indicating' picks ot the loom, a compression spring interposed between the lever the detecting element and tendingto hold the latter in lowered position, said detecting element having' a detecting surface located to one side ot' the line of' action ot' the spring, and means carried by the detecting' element and projecting4 laterally therefrom to lie on i the opposite side ot the spring, said spring and means holding said detectingi element in normal position and tending to return the same to normal position alter an indicating` i'iiovement of the detecting element.

4f; In a wett detector for a wett replenisliing;v loom having a transt'errer arm receiving a movement toward the surface to be detected on each detecting beat of the loom, a sup porting member movably mounted with respect to the transterrer arm and normally held yieldingly in raised position, a detecting` element mounted on the member for sliding` an angular movement with respect thereto, resilient means interposed between the supporting` member and the detector tending to hold the latter in lowered position, said detector having a detecting surface to engage the snritace to be detected lying on one side ol the line of action oi' the resilient means and said detector having a device on the other side of lthe line of action of the resilient means to engage the member, said resil- .ient means cooperating with said device to hold the detector in normal position and to restore the same to normal position after an indicating movement thereof.

5. lin a wett detector for a wett replenishingloom having a transferrer arm receiving movement toward the surface to be detected on each detecting; beat oit the loom, a snpiorting member movably mounted on the transterrer arm and normally held yielding? lv in raised position, a detecting element mounted on the supporting` member for sliding` and angular movement relatively thereto, resilient means for the central portion of the detecting element interposed between said detecting element and the supporting member, a detecting surface for the detector located below the resilient device and to one side ot the line ot action thereof, and a device above the resilient means and located on the other side thereof to engage the supporting member, said device and resilient means tending to hold the detector in normal position and to restore the same to normal position after an indicating movement thereof, said supporting` member and the parts carried thereby moving toward the surface to be detected after the transierrer arm has been brought to rest, due to the energy stored in the supportingmember, said resilient means trzirnsmitting energy from .the supporting; member to the detector.

ln testimony whereof we have hereunto affixed our signatures.

ALBERT CEDERLUND. RICHARD GREENLEAF TURNER. 

